首页> 外文会议>Annual World Conference on Carbon >AN EFFICIENT APPROACH FOR FABRICATING MICROPOROUS CARBON MATERIALS VIA DIRECT PYROLYSIS OF LOW CARBONYL-CROSSLINKED POLYSTYRENE
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AN EFFICIENT APPROACH FOR FABRICATING MICROPOROUS CARBON MATERIALS VIA DIRECT PYROLYSIS OF LOW CARBONYL-CROSSLINKED POLYSTYRENE

机译:通过低羰基交联聚苯乙烯直接热解制造微孔碳材料的有效方法

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Microporous carbon is an attractive material in energy storage devices due to its low density, high surface areas, good electronic conduction and excellent corrosion resistance [1-2]. Up to now, microporous carbon is generally synthesized through activation or template process [3-4]. But the template methods are multi-step and time-consuming, and the activation processes are somewhat complicated and boring, whilst the use of amounts of activating reagents (usually KOH) may create serious pollution and erode the production equipment. Here we report a novel and simple method to fabricate microporous carbon material by introducing a low amount of carbonyl (-CO-) crosslinking bridges into the linear PS chains through a brief F-C reaction for 30 min. The desjred microporous carbon with a BET surface area of 966 m~2/g, a total pore volume of 0.47 cm~3/g and a unimodal pore size distribution at 0.8 nm was obtained after a simple carbonization at 900 °C of this low crosslinking PS.
机译:微孔碳是储能装置中有吸引力的材料,由于其低密度,高表面积,良好的电子传导和优异的耐腐蚀性[1-2]。到目前为止,微孔碳通常通过激活或模板过程[3-4]合成。但模板方法是多步和耗时,并且激活过程有点复杂和镗孔,同时使用活化试剂的量(通常是KOH)可能会产生严重的污染并侵蚀生产设备。在这里,我们通过简要的F-C反应将羰基(-Co-)交联桥接在线性PS链向30分钟将羰基(-Co-)交联桥引入线性PS链中,报告一种新颖简单的方法来制造微孔碳材料。下注表面积为966m〜2 / g的Desjred微孔碳,在该低900℃下的简单碳化之后获得0.47cm〜3 / g的总孔体积和0.8nm的单峰孔径分布。交联PS。

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